Soil Mechanics

Soil mechanics

Soil Mechanics – Consolidation (Single and Double Drainage) | Geotechnical Excel Spreadsheets

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Soil Mechanics – Consolidation (Single and Double Drainage) | Geotechnical Excel Spreadsheets

[GEO-2025-0130] – By Dr. Ahmad Fahmi

We are excited to introduce the Consolidation spreadsheet pack for single and double drainage scenarios as part of the Geotechnical Excel Spreadsheets (2025-1) collection. This set includes 5 essential spreadsheets designed for soil mechanics calculations, focusing on consolidation under different drainage conditions. The pack includes detailed calculations and graphs for total stress, pore water pressure, effective stress, and provides insights into stress distribution in soil.

What’s Included in the 5 Spreadsheets?

  1. Start: The introductory sheet for Consolidation, covering single drainage and double drainage methods.
  2. Single drainage-min: Single drainage Consolidation sheet with Cv unit in cm²/min, with a drainage height of 2 cm.
  3. Single drainage-day: Single drainage Consolidation sheet with Cv unit in m²/day, with a drainage height of 5 m.
  4. Double Drainage-min: Double drainage Consolidation sheet with Cv unit in cm²/min, with a drainage height of 2 cm.
  5. Double Drainage-day: Double drainage Consolidation sheet with Cv unit in m²/day, with a drainage height of 5 m.

Applications in Soil Mechanics and Geotechnical Engineering:

  • Calculate consolidation for soil under both single and double drainage conditions.
  • Analyze coefficient of consolidation (Cv) in different units: cm²/min and m²/day.
  • Single Drainage vs. Double Drainage scenario comparisons for soil consolidation.
  • Consolidation testing and fieldwork for soil behavior in various drainage conditions.
  • Educational use for soil mechanics and geotechnical engineering courses.
  • Practical tool for civil engineers working on foundation and soil stability projects.

📦 Part of Geotechnical Excel Spreadsheets 2025-1 Collection

This product is part of the Geotechnical Excel Spreadsheets (2025-1) suite, featuring:

  • 12 groups of spreadsheets
  • 50 files for various soil mechanics and foundation engineering calculations
  • 470+ spreadsheets
  • Secure and permanent access to all files on your computer
  • Commercially licensed for professional use

For more information or to purchase, contact us at:
📧 academy.dr.fahmi@gmail.com

🛒 To Buy Geotechnical Excel Spreadsheets and Use It on Your PC:

👉 How to Buy Geotechnical Excel Spreadsheets and Use It on Your PC

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👨‍🏫 About Dr. Ahmad Fahmi

Assistant Professor, Geotechnical Engineering, University of Bonab
Dr. Fahmi specializes in applying Excel-based solutions for soil mechanics, foundation engineering, and geotechnical testing.

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Soil Mechanics – Stress Distribution in Soil (Boussinesq Method) | Point Load Analysis | GEOtExcel Spreadsheets

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Soil Mechanics – Stress Distribution in Soil (Boussinesq Method) | Point Load Analysis | GEOtExcel Spreadsheets

[GEO-2025-0126] – By Dr. Ahmad Fahmi

We are pleased to introduce the Stress Distribution in Soil (Boussinesq Method) spreadsheet pack, part of the GEOtExcel (2025-1) collection. This pack includes 5 powerful spreadsheets designed for geotechnical engineers, soil mechanics students, and civil engineering professionals who need to analyze stress distribution in soil under a point load using the Boussinesq method. The spreadsheets cover detailed total stress, pore water pressure, effective stress calculations, and provide graphical insights into the stress distribution.

What’s Included in the 5 Spreadsheets?

  1. Start: The introductory sheet for Stress Distribution in Soil using the Boussinesq Method.
  2. Boussinesq: Boussinesq’s Formula for point load stress distribution in soil.
  3. Point Load1: Stress distribution analysis for Point Load with stress-x graph visualization.
  4. Point Load2: Stress distribution analysis for Point Load with z-stress graph.
  5. Pressure Bulb: Pressure bulb analysis for point load stress distribution in soil.

Applications in Soil Mechanics and Geotechnical Engineering:

  • Stress Distribution Analysis: Accurately calculate stress distribution in soil using the Boussinesq method.
  • Point Load Analysis: Determine the effects of point load on stress distribution in soil layers.
  • Graphical Representation: Visualize stress-x and z-stress graphs for better understanding of soil behavior.
  • Pressure Bulb Analysis: Analyze and visualize the pressure bulb around a point load in soil.
  • Teaching & Learning Tool: Ideal for soil mechanics and geotechnical engineering education and practical use.
  • Field Work & Lab Testing: Use for site investigations and laboratory experiments to analyze soil response under load.

📦 Part of GEOtExcel 2025-1 Collection

This product is part of the GEOtExcel (2025-1) suite, featuring:

  • 12 groups of spreadsheets
  • 50 files for various soil mechanics and foundation engineering calculations
  • 470+ spreadsheets
  • Secure and permanent access to all files on your computer
  • Commercially licensed for professional use

For more information or to purchase, contact us at:
📧 academy.dr.fahmi@gmail.com

🛒 To Buy GEOtExcel and Use It on Your PC:

👉 How to Buy GEOtExcel and Use It on Your PC

🔗 Follow GEOtExcel on Social Media:

👨‍🏫 About Dr. Ahmad Fahmi

Assistant Professor, Geotechnical Engineering, University of Bonab
Dr. Fahmi specializes in integrating Excel-based solutions with soil mechanics, foundation engineering, and geotechnical testing.

📌 Stay Updated:

Subscribe for upcoming lectures on:

Geotechnical Lab Testing
➡️ Subscribe on YouTube

Soil Mechanics

Foundation Engineering

Soil Mechanics – Effective Stress for Single Layer Soil Profile | GEOtExcel Spreadsheets

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Soil Mechanics – Effective Stress for Single Layer Soil Profile | GEOtExcel Spreadsheets

[GEO-2025-0122] – By Dr. Ahmad Fahmi

We are excited to present the Effective Stress for Single Layer Soil Profile spreadsheet pack, part of the GEOtExcel (2025-1) collection. This set includes 20 sheets, designed for geotechnical engineers, soil mechanics students, and civil engineers looking to calculate and visualize effective stress in a single-layer soil profile. The pack includes essential calculations and graphs for total stress, pore water pressure, and effective stress in both kg/m² and kN/m² units.

What’s Included in the 20 Spreadsheets?

  1. Start: Introduction sheet for Effective Stress calculations (kg-Layout 1).
  2. Single Layer-kg: Main sheet explaining the Effective Stress concept for a single-layer profile in kg/m².
  3. TS-01: Calculation Sheet 1 for Total Stress calculation and associated graph.
  4. u-01: Calculation Sheet 2 for Pore Water Pressure calculation and graph.
  5. ES-01: Calculation Sheet 3 for Effective Stress calculation and graph.
  6. [GEO-2025-0122-A] – kg-Layout 1: Effective Stress layout for kg/m².
  7. [GEO-2025-0122-B] – kg-Layout 2: Second layout for Effective Stress using kg/m².
  8. [GEO-2025-0122-C] – kN-Layout 1: Effective Stress layout for kN/m².
  9. [GEO-2025-0122-D] – kN-Layout 2: Second layout for Effective Stress using kN/m².

Applications in Soil Mechanics and Geotechnical Engineering:

  • Performing effective stress analysis in single-layer soil profiles
  • Calculating and visualizing total stress, pore water pressure, and effective stress
  • Teaching and learning about effective stress concepts in soil mechanics
  • Suitable for geotechnical testing, field work, and laboratory experiments
  • Ideal for use in civil engineering projects and foundation design
  • Comprehensive graphs for visual understanding and data interpretation

📦 Part of GEOtExcel 2025-1 Collection

This product is part of the GEOtExcel (2025-1) suite, featuring:

  • 12 groups of spreadsheets
  • 50 files for various soil mechanics and foundation engineering calculations
  • 470+ spreadsheets
  • Secure and permanent access to all files on your computer
  • Commercially licensed for professional use

For more information or to purchase, contact us at:
📧 academy.dr.fahmi@gmail.com

🛒 To Buy GEOtExcel and Use It on Your PC:

👉 How to Buy GEOtExcel and Use It on Your PC

🔗 Follow GEOtExcel on Social Media:

👨‍🏫 About Dr. Ahmad Fahmi

Assistant Professor, Geotechnical Engineering, University of Bonab
Dr. Fahmi specializes in applying Excel-based solutions for soil mechanics, foundation engineering, and geotechnical testing.

📌 Stay Updated:

Subscribe for upcoming lectures on:

Soil Mechanics – Analysis of Soil Hydrometer Testing | Geotechnical Excel Spreadsheets

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Soil Mechanics – Analysis of Soil Hydrometer Testing | Geotechnical Excel Spreadsheets

[GEO-2025-0119] – By Dr. Ahmad Fahmi

We are pleased to introduce the Soil Hydrometer Testing Analysis spreadsheet pack, part of the GEOtExcel (2025-1) collection. This set includes 7 comprehensive spreadsheets designed for geotechnical engineers and soil mechanics students to perform hydrometer analysis and determine soil properties such as effective depth, k-value, and temperature correction factors.

What’s Included in the 7 Spreadsheets?

  1. Start: The introductory sheet to begin the hydrometer analysis for soil.
  2. Calculation: Comprehensive sheet for input, computation, and output tables for the soil hydrometer analysis process.
  3. Table 1: Table for Effective Depth (L) determination based on actual hydrometer reading (RC1).
  4. Table 2: Table for k-value determination based on Gs (specific gravity) and temperature in soil hydrometer analysis.
  5. Table 2-Full: Expanded version of Table 2 for more detailed k-value determination.
  6. Table 3: Sheet for determining the Temperature Correction Factor (CT) during soil hydrometer analysis.
  7. Table 3-Full: Extended version of Table 3 for accurate temperature correction factor determination.

Applications in Soil Mechanics and Geotechnical Engineering:

  • Perform soil classification tests using hydrometer analysis
  • Accurately determine soil’s effective depth and specific gravity (Gs)
  • Calculate k-value based on real lab data
  • Apply temperature correction factor (CT) to soil behavior analysis
  • Educational use for soil mechanics and geotechnical engineering courses
  • Useful for soil testing and lab experiments

📦 Part of GEOtExcel 2025-1 Collection

This product is part of the GEOtExcel (2025-1) suite, featuring:

  • 12 groups of spreadsheets
  • 50 files for various soil mechanics and foundation engineering calculations
  • 470+ spreadsheets
  • Secure and permanent access to all files on your computer
  • Commercially licensed for professional use

For more information or to purchase, contact us at:
📧 academy.dr.fahmi@gmail.com

🛒 To Buy GEOtExcel and Use It on Your PC:

👉 How to Buy GEOtExcel and Use It on Your PC

🔗 Follow GEOtExcel on Social Media:

👨‍🏫 About Dr. Ahmad Fahmi

Assistant Professor, Geotechnical Engineering, University of Bonab
Dr. Fahmi specializes in integrating Excel-based solutions with soil mechanics, foundation engineering, and geotechnical testing.

📌 Stay Updated:

Subscribe for upcoming lectures on:

Soil Mechanics – Unified Soil Classification System (USCS) | Gravel Soil Examples | Geotechnical Excel Spreadsheets

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Soil Mechanics – Unified Soil Classification System (USCS) Gravel Soil Examples | GEOtExcel Spreadsheets

[GEO-2025-0112] – By Dr. Ahmad Fahmi

We are excited to introduce the Unified Soil Classification System (USCS) Gravel Soil Examples spreadsheet pack as part of the GEOtExcel (2025-1) collection. This 20-sheet bundle is designed for geotechnical engineers, soil mechanics students, and civil engineering professionals looking to classify gravel soils using the USCS system based on sieve analysis and Atterberg limits.

What’s Included in the 20 Spreadsheets?

  1. DATA: Unified Soil Classification System data series with sieve analysis and Atterberg limits.
  2. Data Form: Standardized data form for sieve analysis and Atterberg limits tests.
  3. Analysis Sheet-Empty: Empty sheet template for soil classification based on USCS data.
  4. USCS: USCS process table to help classify soil types based on test results.
  5. Examples: Example table with five examples of gravel soils classification using USCS.
  6. Example 1 – GW: Well-graded gravel classification.
  7. F1: Data form for sieve analysis and Atterberg limits for Example 1: GW.
  8. S1: Soil classification analysis sheet for Example 1: GW based on USCS.
  9. Problem 2 – GP: Well-graded gravel classification example.
  10. F2: Data form for sieve analysis and Atterberg limits for Example 2: GP.
  11. S2: Analysis for soil classification for Example 2: GP.
  12. Problem 3 – GC: Gravelly clay soil example.
  13. F3: Data form for sieve analysis and Atterberg limits for Example 3: GC.
  14. S3: Analysis for soil classification for Example 3: GC.
  15. Problem 4 – GW-GM: Well-graded gravel-silty gravel example.
  16. F4: Data form for sieve analysis and Atterberg limits for Example 4: GW-GM.
  17. S4: Analysis for soil classification for Example 4: GW-GM.
  18. Problem 5 – GP-GC: Well-graded gravel-clay gravel example.
  19. F5: Data form for sieve analysis and Atterberg limits for Example 5: GP-GC.
  20. S5: Analysis for soil classification for Example 5: GP-GC.

Applications in Geotechnical and Civil Engineering:

  • Classification of gravel soils for construction projects
  • Performing sieve analysis and Atterberg limits tests
  • Understanding and applying the USCS soil classification system
  • Preparing data forms and analysis sheets for soil lab work
  • Teaching soil mechanics and geotechnical courses
  • Research and fieldwork in soil behavior and composition

📦 Part of the GEOtExcel 2025-1 Collection

This product is part of the comprehensive GEOtExcel (2025-1) package, featuring:

  • 12 groups
  • 50 files
  • Over 470 spreadsheets
  • Secure, permanent access
  • Available for purchase with a commercial license

For inquiries or to purchase, please contact:
📧 academy.dr.fahmi@gmail.com

🛒 To Buy GEOtExcel and Use It on Your PC:

👉 How to Buy GEOtExcel and Use It on Your PC

🔗 Follow GEOtExcel on Social Media:

👨‍🏫 About Dr. Ahmad Fahmi

Assistant Professor, Geotechnical Engineering, University of Bonab
Dr. Fahmi specializes in applying Excel-based solutions for geotechnical engineering, soil mechanics, and foundation engineering.

📌 Stay Updated:

Subscribe to our channel for upcoming video lectures on:

Soil Mechanics – Soil Phase Relationships Calculator | Geotechnical Excel Spreadsheets

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Soil Mechanics – Soil Phase Relationships Calculator | Geotechnical Excel Spreadsheets

[GEO-2025-0106] – By Dr. Ahmad Fahmi

We are proud to introduce one of the most comprehensive Excel spreadsheet packs for Soil Mechanics: the Soil Phase Relationships Calculator, part of the GEOtExcel (2025-1) collection. This package includes 32 educational and professional spreadsheets, offering an in-depth look into the fundamental properties of soil as a three-phase system.

These spreadsheets are essential for students, civil engineers, geotechnical professionals, and lecturers dealing with soil behavior and laboratory testing.

🔍 What’s Included in the 32 Spreadsheets?

  1. Questions – 32 conceptual and applied questions designed to test and teach soil phase relationship fundamentals.
  2. Soil Phases 1 – Introduction to the three-phase soil system: solid, liquid, and gas.
  3. Soil Phases 2 – Continuation of the three-phase system with volumetric relationships.
  4. Soil Phases 3 – Graphical illustration and conceptual breakdown of soil structure.
  5. Soil Phases 4 – Final part of the introduction covering real-world soil phase examples.
  6. SP1 – Volume-based representation of the three-phase soil model.
  7. SP2 – Weight-based representation of the three-phase soil model.
  8. SP3 – Total volume, volume of voids, total weight, and how they interact.
  9. w – Water content (moisture): concept, formula, and example.
  10. e1 – Void ratio Part 1: Conceptual understanding and base formula.
  11. e2 – Void ratio Part 2: Extended explanation with examples.
  12. n – Porosity: Formula and relationship to soil structure.
  13. e, n – Relationship between void ratio and porosity: mathematical and graphical view.
  14. Sr – Degree of saturation: what it is, how to calculate it, and its significance.
  15. ac – Air content: concept and derivation from soil voids.
  16. na – Percentage air voids: practical computation in different soil states.
  17. Water – Unit weight of water used in calculations (ρw).
  18. Air – Unit weight of air (typically negligible, but acknowledged).
  19. Solid – Unit weight of soil solids (γs) and how to determine it.
  20. Gs1 – Specific gravity Part 1: Concept and application.
  21. Gs2 – Specific gravity Part 2: Extended examples and deeper insight.
  22. 3-Phase Soil – Summary sheet combining all phase-based relationships and equations.
  23. Gs2 – Different Units – Specific gravity and unit weight conversions across different unit systems.
  24. DUW – Dry Unit Weight: how to calculate and use it in design.
  25. MUW – Moist Unit Weight: relationship with water content.
  26. SUW – Saturated Unit Weight: calculation under fully saturated conditions.
  27. Unit Weight & Limits – Reference table showing common ranges and practical boundaries for unit weights.
  28. Graphs1 – Soil Phase Graphs: g–Sr & g–w in g/cm³.
  29. Graphs2 – Soil Phase Graphs: g–Sr & g–w in kg/m³.
  30. Graphs3 – Soil Phase Graphs: g–Sr & g–w in kN/m³.
  31. All – Combined summary of dry, moist, and saturated unit weights.
  32. w.Gs = Sr.e – The critical identity formula connecting water content, specific gravity, saturation, and void ratio.

📊 Applications in Civil and Geotechnical Engineering

  • Teaching soil mechanics
  • Lab and report data analysis
  • Assignment and quiz design
  • Parameter estimation and validation
  • Academic and professional research
  • Interactive visual modeling of soil states

📦 Part of GEOtExcel (2025-1)

The full GEOtExcel 2025-1 release includes:

  • 12 topic categories
  • 50 Excel files
  • 470+ spreadsheets
  • Secure and permanent use
  • Commercial license

To receive purchasing info, email:
📧 academy.dr.fahmi@gmail.com

🛒 To Buy GEOtExcel and Use It on Your PC:

👉 How to Buy GEOtExcel and Use It on Your PC

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👨‍🏫 About Dr. Ahmad Fahmi

Assistant Professor, University of Bonab
Creator of GEOtExcel – bridging practical geotechnical analysis with Excel-based tools for learning and professional use.

📌 Subscribe for Upcoming Lectures:

Soil Mechanics | Foundation Engineering | Geotechnical Lab Reports
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How to Buy GEOtExcel and Use It on Your PC

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GEOtExcel (2025-1)

GEOtExcel (2025-1)

We are excited to announce the release of GEOtExcel (2025-1), now more accessible, secure, and permanently usable on your personal computer. Based on valuable user feedback, we’ve enhanced the delivery method. GEOtExcel is now available as an Excel-based desktop application, offering the following advantages:

  • ✅ Lifetime, unlimited access on your personal computer
  • ✅ Save, print, and manage data locally, with no restrictions
  • ✅ No internet or cloud connection required

🔺 Important Note:
The current version (2025-1) is fully functional and permanently usable on the registered computer. Should future versions be released, existing users will enjoy special discounts for upgrading.

📦 How to Order GEOtExcel – Version 2025

To get started, follow these simple steps:

  1. Download and unzip the provided package: Download here The package contains two Excel files:
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You can be fully confident that our support team will assist you throughout the entire process — including payment, installation, and file delivery. If you have any questions, please feel free to ask. We will guide you through the installation process.

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Agreement Instruction Video

GEOtExcel: Geotechnical Excel Spreadsheets

Soil Mechanics: Effective Stress Concept
Bearing Capacity: Vesic’s method
Understanding Soil Phase
Bearing Capacity Calculation in an Excel spreadsheet
Darcy’s law
Stress Bulb
Soil Mechanics Excel Spreadsheet
Soil Mechanics: Stress Distribution
soil particle distribution curve
plasticity chart using Excel spreadsheet
RQD Calculation (Rock Quality Designation)
Comprehensively learning about Bearing Capacity
Geotechnical Excel Spreadsheets
Flow Net, Flow Rate Calculation, Soil Mechanics
Geotechnical Excel Spreadsheet: Soil Mechanics
Excel Spreadsheets for Geotechnical Engineering
Soil Consolidation, Drainage, Tv

Soil Phase Relationships:

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Soil Mechanics Lecture

Soil phase relationships describe how solids, water, and air coexist in a given volume of soil and are essential in understanding soil behavior. These relationships are crucial for assessing characteristics like density, porosity, saturation rate, and moisture content, all of which directly impact soil’s engineering performance. By examining the proportions of solids, water, and air, engineers can determine how well the soil can support loads, retain moisture, or drain. Soil that is fully saturated has no air voids, while partially saturated soils contain both air and water within their void spaces. These relationships offer insights into soil’s stability, compressibility, and permeability, which are necessary for effective design in construction and environmental applications.

Watch the Related Videos on Our YouTube Channel (in English):

Soil Phase Relationships

Volume of air in the voids
Volume of water in the voids
Volume of soil solids

The weight of the air is negligible
Weight of water
Weight of soil solids

Total Volume
Volume of voids
Total Weight

The water content (moisture) represents the proportion of water weight to solid weight.

The void ratio represents the proportion of void volume to solid volume.

The porosity represents the proportion of void volume to total volume.

The porosity represents the proportion of void volume to total volume.

The saturation rate represents the proportion of water volume to void volume.

The air content represents the proportion of air volume to void volume.

The percentage air voids represents the proportion of air volume to total volume.

The weight of 1 cubic centimeter of water is 1 gram.

The weight of 1 cubic centimeter of air is negligible

The weight of 1 cubic centimeter of the clay is 2.72 grams (in this example):

Specific Gravity or Relative density of soil solids:

Specific Gravity or Relative density of soil solids:

Phase 1: Unit weight of air
Phase 2: Unit weight of water
Phase 3: Unit weight of soil solids
3-Phase Soil: Unit weight

Dry Unit Weight

Moisture Unit Weight

Saturated Unit Weight

Dry unit weight
Moisture (total) unit weight
Saturated unit weight

w.Gs=Sr.e

Dry unit weight & Moisture (total) unit weight Relationship

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✅ Excel Spreadsheets for Soil Mechanics & Foundation Engineering
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How is the flow rate through the soil beneath a concrete dam calculated? Excel Spreadsheet

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✅ GEOtExcel: Soil Mechanics & Foundation Engineering Excel Spreadsheets:
▶ https://www.youtube.com/@Dr.Fahmi.GEOtExcel
✅ Soil mechanics: Seepage:Flow Nets: Flow Rate Calculation
✅ Concept-oriented Excel Spreadsheet
▶ More Videos on Our YouTube Channel:
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📊 Geotechnical Excel Spreadsheets
Designed by Dr. Ahmad Fahmi

soil_mechanics #soil_mechanics #seepage #foundation_engineering #excel_Spreadsheet #excel #equipotential #flow_net #flow_rate

The Link on the YouTube Channel:
https://youtu.be/CBNMKoEMhV4

How can we calculate the flow rate through soil using Darcy’s law?

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✅ GEOtExcel: Soil Mechanics & Foundation Engineering Excel Spreadsheets:
☑ Soil mechanics: Darcy’s law (alpha version):
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Hydraulic gradient, velocity and flow rate calculation:
📊 Geotechnical Excel Spreadsheets
Designed by Dr. Ahmad Fahmi

soilmechanics #soil_mechanics #Darcy_law #foundation_engineering #excel_Spreadsheet #excel #Hydraulic_gradient #flow_rate

The Link on the YouTube Channel:
https://youtu.be/YqRafl_g9Wo